Research on polarization characteristics of comb filter based on microfiber Sagnac ring
- Resource Type
- Conference
- Authors
- Li, Min; Sun, Jiajia; Lv, Yumeng; Shao, Changsheng; Li, Lijun; Xu, Tianzong; Sun, Jianhong; Ma, Qian
- Source
- 2021 19th International Conference on Optical Communications and Networks (ICOCN) Optical Communications and Networks (ICOCN), 2021 19th International Conference on. :1-3 Aug, 2021
- Subject
- Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Signal Processing and Analysis
Optical filters
Shape
Filtering
Linearity
Sagnac interferometers
Comb filters
Wavelength division multiplexing
Sagnac ring
microfiber
comb filter
polarization angle
- Language
A comb filter based on microfiber Sagnac ring is proposed. The transmission spectrum of the proposed comb filter is theoretically analyzed. And the polarization characteristics of the comb filter are experimentally demonstrated. The experimental results show that the variation of polarization angle will cause the transmission spectrum drift and the filter depth variation. The variation of wave peak intensity is approximately sinusoidal waveforms through rotating the polarization controller. By studying the polarization characteristics of the comb filter, the comb filter can be better applied to dense wavelength division multiplexing system.